Solution
1. Bxc6 (captures the defender of the d8-square) bxc6 2. Rd8+ (overloads the c8-Rook in that it has to defend the c7-knight) Rxd8 3. Rxd8+ Kh7 4. Bxc7 wins a piece in the process.
Exercise #142
The "7-Skills" Chess Training Model. Get your free copy here...
1. Bxc6 (captures the defender of the d8-square) bxc6 2. Rd8+ (overloads the c8-Rook in that it has to defend the c7-knight) Rxd8 3. Rxd8+ Kh7 4. Bxc7 wins a piece in the process.